STMicroelectronics Voltage Regulators - Linear L4931CDT80-TR

The L4931CDT80-TR is a linear voltage regulator designed for low dropout applications, featuring a dropout voltage of only 0.4 V. It supports output currents up to 250 mA and operates with a very low quiescent current of 50 ¬µA in OFF mode and 600 ¬µA in ON mode, making it suitable for battery-powered systems. The device includes a logic-controlled electronic shutdown feature, allowing parts of the circuit to enter standby mode to further reduce power consumption. It requires only a 2.2 ¬µF capacitor for stability, which aids in minimizing board space and cost. The L4931CDT80-TR is available in multiple fixed output voltages, including 3.3 V, and is qualified as automotive-grade in the SO-8 package, operating within a temperature range of -40 to 125 ¬8C. The product also features internal current and thermal limiting for enhanced reliability.